Alert archive / Arizona / Flash Flood Warnings in 2021
Flash Flood Warning 206, NWS Phoenix, AZ
NWS Phoenix, AZ issued this flash flood warning at Aug 18, 2021, 9:26 AM MST for Gila County, Pinal County, Arizona. It was in force for 5 hr. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 18, 2021, 9:26 AM MST (16:26 UTC)
- Expired
- Aug 18, 2021, 2:47 PM MST
- In force
- 5 hr
- Issued by
- NWS Phoenix, AZ
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
Counties Gila County, AZ, Pinal County, AZ
The radar
The Phoenix radar (KIWA), 73 km from the middle of the area, began a volume at 16:29 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 18, 9:45 AM MST | FLASH FLOOD | 1 Se Globe, AZ | VIDEO SHOWS PINAL CREEK RUNNING HIGH RESULTING IN SWIFTLY MOVING WATER OVERTAKING BEER TREE CROSSING NEAR JESSE HAYES RD. BEER TREE CROSSING LOOKS IMPASSIBLE DUE TO FLOWING WATER. |
| Aug 18, 10:57 AM MST | FLASH FLOOD | 1 Ene Claypool, AZ | AZ-511 TRAFFIC CAMERA SHOWS US-60 IMPASSIBLE NEAR RAGUS RD. DUE TO WATER FROM RUSSELL GULCH. |
| Aug 18, 10:57 AM MST | FLASH FLOOD | 1 Ene Claypool, AZ | AZ-511 TRAFFIC CAMERA SHOWS US-60 IMPASSIBLE NEAR RAGUS RD. DUE TO WATER FROM THE BLOODY TANKS WASH. |
| Aug 18, 11:00 AM MST | FLASH FLOOD | 1 Ene Claypool, AZ | MULTIPLE HOMES HAVE BEEN DAMAGED IN RUSSELL GULCH AND THE AREA IS CUT OFF TO ACCESS. THE BRIDGE AT THE MEDICAL CENTER IS IMPASSABLE, AND US-60 HAS OVERTOPPED WITH FLOOD WATERS. |
| Aug 18, 11:00 AM MST | FLASH FLOOD | 3 Sse Globe, AZ | VIDEO FROM SOCIAL MEDIA POST SHOWED SIX SHOOTER CANYON RUNNING HIGH WITH SWIFTLY MOVING WATER ACROSS SIX SHOOTER RD. NEAR DELORES LN. SIX SHOOTER CANYON RD. IMPASSIBLE CLOSE TO MOUNTAINGATE ESTATES NEXT TO DELORES LN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Phoenix, AZ (KPSR), launched 12:00Z, 4.4 hours before the alert went out and 101 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1239 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 1144 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
731
WGUS55 KPSR 181626
FFWPSR
AZC007-021-182030-
/O.NEW.KPSR.FF.W.0206.210818T1626Z-210818T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Phoenix AZ
926 AM MST Wed Aug 18 2021
The National Weather Service in Phoenix has issued a
* Flash Flood Warning for...
The Telegraph burn scar in...
Gila County in east central Arizona...
Pinal County in southeastern Arizona...
* Until 130 PM MST.
* At 926 AM MST, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain over the Telegraph Burn Scar.
Between 0.5 and 0.75 inches of rain have fallen. Additional
rainfall amounts up to 0.5 inches are possible in the warned area.
Flash flooding is ongoing or expected to begin shortly.
Excessive rainfall over the burn scar will result in rapid rises in
Bloody Tanks Wash and Russell Gulch. Both creeks are already
flowing with elevated flows with more rainfall on the way.
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding in and around the Telegraph
Burn Scar.
SOURCE...Radar and automated gauges.
IMPACT...Life threatening flash flooding of areas in and around
the Telegraph Burn Scar.
* Some locations that will experience flash flooding include...
Globe, Miami, Claypool, Central Heights-Midland City,
Top-Of-The-World and Inspiration.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3341 11094 3343 11087 3346 11082 3342 11078
3339 11073 3336 11069 3330 11074 3323 11079
3325 11083 3325 11087 3325 11094 3325 11099
3321 11102 3324 11105 3330 11104 3339 11101
FLASH FLOOD...RADAR AND GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
MS3 follow-up statements
271
WGUS75 KPSR 181737
FFSPSR
Flash Flood Statement
National Weather Service Phoenix AZ
1037 AM MST Wed Aug 18 2021
AZC007-021-182030-
/O.CON.KPSR.FF.W.0206.000000T0000Z-210818T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Gila AZ-Pinal AZ-
1037 AM MST Wed Aug 18 2021
...FLASH FLOOD WARNING FOR THE TELEGRAPH BURN SCAR REMAINS IN EFFECT
UNTIL 130 PM MST THIS AFTERNOON FOR GILA AND PINAL COUNTIES...
At 1037 AM MST, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain over the Telegraph Burn Scar.
Between 1.5 and 2.25 inches of rain have fallen. Additional rainfall
amounts up to 0.5 inches are possible in the warned area. Flash
flooding is already occurring as evidenced by rapid rises in area
washes including Ice House Canyon.
Excessive rainfall over the burn scar has resulted in rapid rises in
Ice House Canyon and Kellner Canyon.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding in and around the Telegraph Burn Scar.
SOURCE...Radar and automated gauges.
IMPACT...Life threatening flash flooding of areas in and around
the Telegraph Burn Scar.
Some locations that will experience flash flooding include...
Globe, Miami, Claypool, Central Heights-Midland City,
Top-Of-The-World and Inspiration.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3341 11094 3343 11087 3346 11082 3342 11078
3339 11073 3336 11069 3330 11074 3323 11079
3325 11083 3325 11087 3325 11094 3325 11099
3321 11102 3324 11105 3330 11104 3339 11101
FLASH FLOOD...RADAR AND GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
MS423
WGUS55 KPSR 182021
FFWPSR
AZC007-021-182200-
/O.EXT.KPSR.FF.W.0206.000000T0000Z-210818T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Phoenix AZ
121 PM MST Wed Aug 18 2021
The National Weather Service in Phoenix has extended the
* Flash Flood Warning for...
The Telegraph burn scar in...
Gila County in east central Arizona...
Pinal County in southeastern Arizona...
* Until 300 PM MST.
* At 121 PM MST, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain over the Telegraph Burn Scar.
During the late morning hours between 1.5 and 2.25 inches of rain
had fallen. Additional rainfall amounts up to 0.5 inches are
possible in the warned area. Flash flooding is already occurring.
Flash flood impacts have been reported in Russell Gulch and
Sixshooter Canyon. Any additional rainfall will cause these creeks
and washes to rise again.
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding in and around the Telegraph
Burn Scar.
SOURCE...Radar and automated gauges.
IMPACT...Life threatening flash flooding of areas in and around
the Telegraph Burn Scar.
* Some locations that will experience flash flooding include...
Globe, Miami, Claypool, Central Heights-Midland City,
Top-Of-The-World and Inspiration.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3341 11094 3343 11087 3346 11082 3342 11078
3339 11073 3336 11069 3330 11074 3323 11079
3325 11083 3325 11087 3325 11094 3325 11099
3321 11102 3324 11105 3330 11104 3339 11101
FLASH FLOOD...RADAR AND GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
MS609
WGUS75 KPSR 182147 RRA
FFSPSR
Flash Flood Statement
National Weather Service Phoenix AZ
247 PM MST Wed Aug 18 2021
AZC007-021-182157-
/O.CAN.KPSR.FF.W.0206.000000T0000Z-210818T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Gila AZ-Pinal AZ-
247 PM MST Wed Aug 18 2021
...FLASH FLOOD WARNING FOR THE TELEGRAPH BURN SCAR IS CANCELLED FOR
GILA AND PINAL COUNTIES...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat though any additional rainfall
could cause creeks and washes to rise. Please continue to heed
remaining road closures.
A Flash Flood Watch remains in effect until 800 PM MST for a portion
of south central Arizona.
LAT...LON 3341 11094 3343 11087 3346 11082 3342 11078
3339 11073 3336 11069 3330 11074 3323 11079
3325 11083 3325 11087 3325 11094 3325 11099
3321 11102 3324 11105 3330 11104 3339 11101
$$
MSThe office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 5:16 PM MST | Flash Flood Warning | PSR | Gila | 6 hr |
| Aug 17, 6:05 PM MST | Flash Flood Warning | PSR | Gila | 6 hr |
| Aug 17, 9:08 PM MST | Flash Flood Watch | PSR | Gila, Maricopa, Pinal | 23 hr |
| Aug 18, 7:55 AM MST | Flash Flood Warning | PSR | Gila | 4 hr |
| Aug 18, 8:48 AM MST | Flash Flood Warning | PSR | Gila, Maricopa, Pinal | 6 hr |
| Aug 18, 9:39 AM MST | Flash Flood Warning | PSR | Gila | 4 hr |
| Aug 18, 10:16 AM MST | Flash Flood Warning | PSR | Gila | 4 hr |
| Aug 18, 11:16 AM MST | Flash Flood Warning | PSR | Gila | 3 hr |
| Aug 18, 11:37 AM MST | Flash Flood Warning | PSR | Gila | 5 hr |
| Aug 18, 11:46 AM MST | Severe Thunderstorm Warning | PSR | Maricopa | 29 min |
| Aug 18, 11:59 AM MST | Flash Flood Warning | PSR | Maricopa | 5 hr |
| Aug 18, 12:16 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 29 min |
| Aug 18, 12:26 PM MST | Special Weather Statement | PSR | Maricopa | 49 min |
| Aug 18, 12:28 PM MST | Flash Flood Warning | PSR | Gila, Maricopa | 5 hr |
| Aug 18, 12:28 PM MST | Flash Flood Warning | PSR | Maricopa | 4 hr |
| Aug 18, 12:29 PM MST | Special Weather Statement | PSR | 46 min | |
| Aug 18, 12:38 PM MST | Special Weather Statement | PSR | 52 min | |
| Aug 18, 12:45 PM MST | Special Weather Statement | PSR | 45 min | |
| Aug 18, 12:52 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 53 min |
| Aug 18, 1:00 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 45 min |
| Aug 18, 1:06 PM MST | Flash Flood Warning | PSR | Maricopa | 5 hr |
| Aug 18, 1:11 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 35 min |
| Aug 18, 1:19 PM MST | Special Weather Statement | PSR | Gila | 41 min |
| Aug 18, 1:23 PM MST | Flash Flood Warning | PSR | Maricopa | 4 hr |
| Aug 18, 1:39 PM MST | Special Weather Statement | PSR | Maricopa | 51 min |
| Aug 18, 1:40 PM MST | Flash Flood Warning | PSR | Maricopa | 6 hr |
| Aug 18, 1:46 PM MST | Flash Flood Warning | PSR | Maricopa | 4 hr |
| Aug 18, 1:47 PM MST | Special Weather Statement | PSR | 43 min | |
| Aug 18, 2:09 PM MST | Special Weather Statement | PSR | 51 min | |
| Aug 18, 2:13 PM MST | Special Weather Statement | PSR | Maricopa | 47 min |
| Aug 18, 2:15 PM MST | Flash Flood Warning | PSR | Maricopa | 6 hr |
| Aug 18, 2:29 PM MST | Severe Thunderstorm Warning | PSR | Gila, Maricopa | 46 min |
| Aug 18, 2:32 PM MST | Special Weather Statement | PSR | 43 min | |
| Aug 18, 2:34 PM MST | Special Weather Statement | PSR | Gila | 41 min |
| Aug 18, 2:45 PM MST | Flash Flood Warning | PSR | Gila, Maricopa | 6 hr |
| Aug 18, 3:02 PM MST | Special Weather Statement | PSR | 43 min | |
| Aug 18, 3:03 PM MST | Special Weather Statement | PSR | Pinal | 42 min |
| Aug 18, 3:11 PM MST | Flash Flood Warning | PSR | Gila, Maricopa | 5 hr |
| Aug 18, 3:19 PM MST | Special Weather Statement | PSR | 41 min | |
| Aug 18, 3:33 PM MST | Flash Flood Warning | PSR | Gila, Maricopa | 4 hr |
| Aug 18, 3:41 PM MST | Special Weather Statement | PSR | Gila | 64 min |
| Aug 18, 3:46 PM MST | Flash Flood Warning | PSR | Gila | 5 hr |
| Aug 18, 4:13 PM MST | Special Weather Statement | PSR | Maricopa | 47 min |
| Aug 18, 4:39 PM MST | Special Weather Statement | PSR | Maricopa | 51 min |
| Aug 18, 4:58 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 32 min |
Nearby
Flash Flood Warnings in Arizona, 2021Every flash flood warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.